bot examples

Author: diberry

articles/cognitive-services/QnAMaker/How-To/metadata-generateanswer-usage.md

@@ -8,7 +8,7 @@ manager: nitinme
 ms.service: cognitive-services
 ms.subservice: qna-maker
 ms.topic: article
-ms.date: 05/30/2019
+ms.date: 06/17/2019
 ms.author: tulasim
 ---
 
@@ -140,6 +140,40 @@ A successful response returns a status of 200 and a JSON response.
 }
 ```
 
+## Use QnA Maker with a bot in C#
+
+The bot framework provides access to the QnA Maker's properties:
+
+```csharp
+using Microsoft.Bot.Builder.AI.QnA;
+var metadata = new Microsoft.Bot.Builder.AI.QnA.Metadata();
+var qnaOptions = new QnAMakerOptions();
+
+qnaOptions.Top = Constants.DefaultTop;
+qnaOptions.ScoreThreshold = 0.3F;
+var response = await _services.QnAServices[QnAMakerKey].GetAnswersAsync(turnContext, qnaOptions);
+```
+
+The Support bot has [an example](https://github.com/microsoft/BotBuilder-Samples/blob/master/experimental/qnamaker-support/csharp_dotnetcore/Service/SupportBotService.cs#L418) with this code.
+
+## Use QnA Maker with a bot in Node.js
+
+The bot framework provides access to the QnA Maker's properties:
+
+```csharp
+const { QnAMaker } = require('botbuilder-ai');
+this.qnaMaker = new QnAMaker(endpoint);
+
+// Default QnAMakerOptions
+var qnaMakerOptions = {
+    ScoreThreshold: 0.03,
+    Top: 3
+};
+var qnaResults = await this.qnaMaker.getAnswers(stepContext.context, qnaMakerOptions);
+```
+
+The Support bot has [an example](https://github.com/microsoft/BotBuilder-Samples/blob/master/experimental/qnamaker-activelearning/javascript_nodejs/Helpers/dialogHelper.js#L36) with this code.
+
 <a name="metadata-example"></a>
 
 ## Use metadata to filter answers by custom metadata tags